How green is Heerlen?
Heerlen has 173 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 37% of the city area. In summer, the hottest land surface zones sit 3.5 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 9.8 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Heerlen ranks #416 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #41 of 56 in Netherlands.
173
m² green per inhabitant
37%
vegetation cover
+3.5 °C
hottest zones vs city mean
9.8
PM2.5 estimate µg/m³
16.6
PM10 estimate µg/m³
18.1
NO2 estimate µg/m³
418.3
Index · #416/828
City maps
Nearby in the rankings
This city is at position #416 of 828 worldwide.
| #rank | City | Country | Index |
|---|---|---|---|
| 413 | Pesaro | Italy | 417.5 |
| 414 | Piatra Neamţ | Romania | 417.5 |
| 415 | Będzin | Poland | 418.0 |
| 416 | Heerlen | Netherlands | 418.3 |
| 417 | Manresa | Spain | 418.5 |
| 418 | Utrecht | Netherlands | 418.8 |
| 419 | Torrevieja | Spain | 419.5 |
Method and caveats
Heat is land surface temperature, not air temperature. Air quality values are model estimates. Green area is vegetation extent detected by satellite, not tree height.